You will be given a definition of a task first, then some input of the task.
In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Crescentia (calabash tree, huingo, krabasi, or kalebas) is a genus of six species of flowering plants in the family Bignoniaceae, native to southern North America, the Caribbean, Central America and northern South America. The species are moderate-size trees growing to tall, and producing large spherical fruits, with a thin, hard shell and soft pulp, up to in diameter., The index finger, (also referred to as forefinger, pointer finger, trigger finger, digitus secundus, digitus II, and many other terms), is the first finger and the second digit of a human hand. It is located between the first and third digits, between the thumb and the middle finger. It is usually the most dextrous and sensitive finger of the hand, though not the longest  it is shorter than the middle finger, and may be shorter or longer than the ring finger  see digit ratio., South India is the area encompassing the Indian states of Tamil Nadu, Andhra Pradesh, Karnataka, Kerala, and Telangana as well as the union territories of Andaman and Nicobar, Lakshadweep and Puducherry, occupying 19.31% of India's area. Covering the southern part of the peninsular Deccan Plateau, South India is bounded by the Bay of Bengal in the east, the Arabian Sea in the west and the Indian Ocean in the south. The geography of the region is diverse with two mountain ranges - the Western and Eastern Ghats, bordering the plateau heartland. Godavari, Krishna, Kaveri, Tungabhadra and Vaigai rivers are important non-perennial sources of water. Bangalore, Chennai, Hyderabad, Visakhapatnam, Vijayawada, Coimbatore and Kochi are the largest urban areas., North India is a loosely defined region consisting of the northern part of India. The dominant geographical features of North India are the Indus-Gangetic Plain and the Himalayas, which demarcate the region from the Tibetan Plateau and Central Asia., In physics, a standing wave  also known as a stationary wave  is a wave in a medium in which each point on the axis of the wave has an associated constant amplitude. The locations at which the amplitude is minimum are called nodes, and the locations where the amplitude is maximum are called antinodes., The sitar English pronunciation : / str / or / str / is a plucked stringed instrument used mainly in Hindustani music and Indian classical music . The instrument is believed to have been derived from the veena , an ancient Indian instrument , which was modified by a Mughal court musician to conform with the tastes of his Mughal patrons and named after a Persian instrument called the setar ( meaning three strings ) . The sitar flourished in the 16th and 17th centuries and arrived at its present form in 18th century India . It derives its distinctive timbre and resonance from sympathetic strings , bridge design , a long hollow neck and a gourd - shaped resonance chamber . In appearance , the sitar is similar to the tanpura , except that it has frets . Used widely throughout the Indian subcontinent , the sitar became popularly known in the wider world through the works of Ravi Shankar , beginning in the late 1950s and early 1960s . The instrument saw initial use in Western popular music by The Beatles and The Rolling Stones , beginning a trend for the use of the sitar in popular music ., A resonance chamber uses resonance to amplify sound. The chamber has interior surfaces which reflect an acoustic wave. When a wave enters the chamber, it bounces back and forth within the chamber with low loss (See standing wave). As more wave energy enters the chamber, it combines with and reinforces the standing wave, increasing its intensity., In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a transmission medium such as air or water. In physiology and psychology, sound is the "reception" of such waves and their "perception" by the brain. Humans can hear sound waves with frequencies between about 20 Hz and 20 kHz. Sound above 20 kHz is ultrasound and below 20 Hz is infrasound. Other animals have different hearing ranges., Indian classical music is a genre of South Asian music. It has two major traditions. The North Indian classical music tradition is called "Hindustani", while the South Indian expression is called "Carnatic". These traditions were not distinct till about the 16th century. There on, during the turmoils of Islamic rule period of the Indian subcontinent, the traditions separated and evolved into distinct forms. However, the two systems continue to have more common features than differences., Islam (' ;) is a religion articulated by the Quran, a text considered by its adherents to be the verbatim word of God ('), and, for the vast majority of adherents, the teachings and normative example (called the "sunnah", composed of accounts called "hadith") of Muhammad (5708 June 632 CE). It is the world's second-largest religion and the fastest-growing major religion in the world, with over 1.7 billion followers or 23% of the global population, known as Muslims. Islam is an Abrahamic monotheistic religion that upholds that God is one and incomparable and that the purpose of existence is to worship God. Muslims consider Muhammad to be the last prophet of God., Bignoniaceae is a family of flowering plants in the order Lamiales commonly known as the bignonias. It is not known to which of the other families in the order it is most closely related., In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at a specific preferential frequency.
Frequencies at which the response amplitude is a relative maximum are known as the system's resonant frequencies or resonance frequencies. At resonant frequencies, small periodic driving forces have the ability to produce large amplitude oscillations, due to the storage of vibrational energy., A gourd is a plant of the family Cucurbitaceae, particularly "Cucurbita" and "Lagenaria" or the fruit of the two genera of Bignoniaceae "calabash tree", "Crescentia" and "Amphitecna"., South Asia or Southern Asia is a term used to represent the southern region of the Asian continent, which comprises the sub-Himalayan SAARC countries and, for some authorities, adjoining countries to the west and east. Topographically, it is dominated by the Indian Plate, which rises above sea level as Nepal and northern parts of India situated south of the Himalayas and the Hindu Kush. South Asia is bounded on the south by the Indian Ocean and on land (clockwise, from west) by West Asia, Central Asia, East Asia, and Southeast Asia., Setar (from "seh", meaning "three" and "tr", meaning "string") is an Iranian musical instrument. It is a member of the lute family, which is played with index finger of the right hand. Two and a half centuries ago, a fourth string was added to the setar. it has 25 - 27 moveable frets which are usually made of animal intestines or silk. It originated in Persia before the spread of Islam., Cucurbita (Latin for gourd) is a genus of herbaceous vines in the gourd family, Cucurbitaceae, also known as cucurbits, native to the Andes and Mesoamerica. Five species are grown worldwide for their edible fruit, variously known as squash, pumpkin, or gourd depending on species, variety, and local parlance, and for their seeds. First cultivated in the Americas before being brought to Europe by returning explorers after their discovery of the New World, plants in the genus "Cucurbita" are important sources of human food and oil. Other kinds of gourd, also called bottle-gourds, are native to Africa and belong to the genus "Lagenaria", which is in the same family and subfamily as "Cucurbita" but in a different tribe. These other gourds are used as utensils or vessels, and their young fruits are eaten much like those of Cucurbita species., Lute can refer generally to any string instrument having the strings running in a plane parallel to the sound table (in the HornbostelSachs system), more specifically to any plucked string instrument with a neck (either fretted or unfretted) and a deep round back, or more specifically to an instrument from the family of European lutes., Amphitecna is a genus of plant in family Bignoniaceae. , The Cucurbitaceae, also called cucurbits and the gourd family, are a plant family consisting of ca 965 species in around 95 genera, the most important of which are:, Lagenaria is a genus of gourd-bearing vines in the squash family (Cucurbitaceae). "Lagenaria" contains six species, all of which are indigenous to tropical Africa. The best-known species, the bottle gourd, "L. siceraria", has been domesticated by humans, and has spread beyond Africa. The other species are not cultivated. The gourds of the various species may be harvested young and used as a vegetable. More commonly, the gourds are harvested mature, then dried, and used in making utensils (including musical instruments and containers). Gourds of "L. siceraria" have been used to store water and other liquids since ancient times. The generic name "lagenaria" comes from classical Latin "lagena" meaning bottle or flask, plus Latin suffix -aria., Subject: sitar, Relation: subclass_of, Options: (A) ability (B) animal (C) area (D) bay (E) bearing (F) being (G) brain (H) continent (I) digit (J) driving (K) energy (L) family (M) finger (N) food (O) fourth (P) fruit (Q) geography (R) islam (S) latin (T) lute (U) member (V) mountain (W) music (X) musical (Y) musical instrument (Z) name ([) order (\) part (]) phenomenon (^) physics (_) physiology (`) plain (a) plant (b) plate (c) plucked string instrument (d) point (e) pointer (f) population (g) psychology (h) religion (i) sea (j) second (k) shell (l) sound (m) spread (n) standing wave (o) string instrument (p) suffix (q) system (r) table (s) term (t) text (u) tradition (v) tree (w) tribe (x) variety (y) vegetable (z) word ({) world
Output:
plucked string instrument